By the mid-nineteenth century, efforts to modernize and industrialize Mexico City had the unintended consequence of exponentially increasing the risk of fire while also breeding a culture of fear. Through an array of archival sources, Anna Rose Alexander argues that fire became a catalyst for social change, as residents mobilized to confront the problem. Advances in engineering and medicine soon fostered the rise of distinct fields of fire-related expertise while conversely, the rise of fire-profiteering industries allowed entrepreneurs to capitalize on crisis. <br><br><i>City on Fire</i> demonstrates that both public and private engagements with fire risk highlight the inequalities that characterized Mexican society at the turn of the twentieth century.